Tensioners & Pulleys
More informationAt the Global Parts automotive store, we offer a wide selection of original used car parts, including tensioners and rollers for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen and others. The tensioners and rollers we offer undergo quality control so that you can be sure that you are receiving a top-class product.
GB
Make
Category
Subcategory
Timing Components & Kits
Condition
In Stock
Price
-15%
Part no. A6510300703
Vibration Damper Mercedes Sprinter W906 OM651 Engine Crankshaft Pulley Belt
Promo price
£18.95
£16.11
Free delivery: Jul 23
If paid before 14:00
Part no. A6510351812
Mercedes Vito W447 OM651 Engine Vibration Damper Crankshaft Pulley A6510351812
£113.95
Free delivery: Jul 24 – 31
If paid before 14:00
-5%
Part no. A6512000670
Idle Guide Pulley Mercedes W639 W906 OM651 Auxiliary Belt Pulley A6512000670
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. A6510300803
Vibration Damper Mercedes W204 W212 W639 OM651 Engine Crankshaft Belt Pulley
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. A6512001270
Mercedes Vito W639 Sprinter W906 Diesel OM651 Belt Tensioner Pulley A6512001270
Promo price
£28.95
£24.61
Free delivery: Jul 23
If paid before 14:00
Part no. A6542000070
Mercedes W213 W447 OM654 Diesel Belt Tensioner Pulley A6542000070
£18.95
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. A6512002170
Mercedes W204 W212 Diesel OM651 Belt Tensioner Pulley A6512002170
Promo price
£23.95
£14.37
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. A6510350112
Damper Mercedes W176 OM651 Crankshaft Vibration Damper Belt Pulley A6510350112
Promo price
£42.95
£25.77
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. A6112341039-1
Mercedes W906 OM651 Alternator Belt Tensioner Mount Bracket Diesel A6112341039
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
Part no. A2730300803
Mercedes W203 W212 Crankshaft Pulley Vibration Damper Wheel A2730300303
£18.95
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. A6422001970
Mercedes Sprinter W906 Diesel OM642 Water Pump Belt Tensioner A6422001970
Promo price
£18.95
£16.11
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. A2722000270
Mercedes W203 M272 Water Pump Belt Tensioner Pulley A2722000070
Promo price
£23.95
£14.37
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. A6512002370-1
Mercedes Vito W447 OM651 Diesel Belt Tensioner Pulley A6512002370
Promo price
£28.95
£17.37
Free delivery: Jul 23
If paid before 14:00
Part no. A6512007501-1
Mercedes Sprinter W910 OM651 Diesel Belt Tensioner Pulley A6512007501
£18.95
Free delivery: Jul 23
If paid before 14:00
Part no. A1120520801
Mercedes CLK 320 W208 Camshaft Gear Pulley M112 A1120520801
£18.95
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. A2024112347
Vibration Damper Mercedes R170 Prop Shaft Belt Drive Pulley Wheel A2024112347
Promo price
£47.95
£28.77
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. A2642000070-1
Mercedes W205 W213 Engine Belt Drive Tensioner Pulley M264 Petrol A2642000070
Promo price
£94.95
£56.97
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. A2722000270-1
Tensioner Mercedes W203 M272 Water Pump Belt Tensioner A2722000070
Promo price
£18.95
£16.11
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. A2662020019
Mercedes Benz A B W169 W245 Engine Belt Drive Tensioner Pulley A2662020019
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. A2540308900
Mercedes W206 W214 C254 Crankshaft Pulley Vibration Damper M254 A2540308900
Promo price
£237.95
£142.77
Free delivery: Jul 24 – 31
If paid before 14:00
-40%
Part no. A1562000570
Mercedes W204 Belt Tensioner Pulley Petrol Engine M156 Tensioner A1562000570
Promo price
£28.95
£17.37
Free delivery: Jul 23
If paid before 14:00
Part no. A2820350600
Mercedes W177 H247 Crankshaft Pulley M282 A2820350600
Product currently unavailable
Part no. A6512000070
Mercedes W204 A207 C204 C218 OM651 Diesel Belt Tensioner Pulley A6512000070
Product currently unavailable
Part no. A6462000570-1
Mercedes W203 W204 W211 W639 W906 OM646 Diesel Belt Tensioner A6462000570
Product currently unavailable
Part no. A6512000570
Tensioner Mercedes W176 Diesel OM651 Auxiliary Belt Tensioner Pulley A6512000570
Product currently unavailable
Part no. A6510352912
Mercedes W447 OM651 Diesel Engine Belt Pulley Automatic Gearbox A6510352912
Product currently unavailable
Part no. A6510352412
Mercedes Vito W447 OM651 Engine Vibration Damper Crankshaft Pulley A6510352412
Product currently unavailable
Part no. A6422300342
Mercedes R231 OM642.820 Diesel Engine Belt Drive Tensioner Pulley A6422300342
Product currently unavailable
Part no. A6540300003
Vibration Damper Mercedes W213 C238 OM654 Engine Crankshaft Pulley A6540300003
Product currently unavailable
Part no. A6402003370
Mercedes W169 W245 CDI OM 640 Alternator Belt Tensioner Holder Pulley
Product currently unavailable
Part no. A6400300503
Vibration Absorber Mercedes W169 W245 OM640 Damper Crankshaft Pulley A6400300503
Product currently unavailable
Part no. A2702000170
Belt Tensioner Mercedes C117 W176 W246 Engine Drive Pulley A2702000170
Product currently unavailable
Part no. A0002020019
Mercedes Benz C Class W203 Engine Belt Drive Tensioner Pulley A0002020019
Product currently unavailable
Part no. A6510300303
Vibration Damper Mercedes Sprinter W906 OM651 Engine Crankshaft Belt Pulley
Product currently unavailable
Part no. A6542002600
Mercedes W167 OM654 Diesel Belt Tensioner Pulley A6542002600
Product currently unavailable
Part no. A2642000070
Mercedes W205 Engine Belt Drive Tensioner A2642000070
Product currently unavailable
Part no. A6540303500
Mercedes W213 Vibration Damper Engine Crankshaft Pulley A6540303500
Product currently unavailable
Part no. A6070300600
Vibration Damper Mercedes W176 C117 OM607 Diesel Crankshaft Pulley A6070300600
Product currently unavailable
Part no. A6512007501-2
Mercedes Sprinter W910 OM651 Diesel Belt Tensioner Pulley A6512007501
Product currently unavailable
Part no. A6560300600
Mercedes W213 OM656 Vibration Damper Engine Crankshaft Pulley A6560300600
Product currently unavailable
Part no. A6512002370
Mercedes Vito W447 OM651 Diesel Belt Tensioner Pulley A6512002370
Product currently unavailable
Part no. A1120350900
Mercedes CL203 Vibration Damper Engine Crankshaft Belt Pulley A1120350900
Product currently unavailable
Part no. A6420300103
Mercedes W164 W221 Crankshaft Pulley 3.0 CDI Diesel V6 A6420300103
Product currently unavailable
Part no. A6510770512
Camshaft Gear Mercedes W204 C207 W212 OM651 Pressure Pump Pulley A6510770512
Product currently unavailable
Part no. A2700521000
Mercedes W176 W246 Timing Chain Tensioner Bracket Petrol Engine A2700521000
Product currently unavailable
Part no. A6512002170-1
Mercedes W204 Auxiliary Fan Belt Tensioner A6512002170
Product currently unavailable
Part no. A1112000770
Mercedes W203 M111 Auxiliary Belt Tensioner A1112000770
Product currently unavailable
Part no. A1550500003
Mercedes A209 M112 Crankshaft Gear Pulley Sprocket A1550500003
Product currently unavailable
Part no. A1662020340
Mercedes W168 Belt Tensioner M166 Petrol Engine Holder Pulley A1662020340
Product currently unavailable
Part no. A2710521903
Mercedes W204 W207 Crankshaft Gear Flywheel Pulley A2710521903
Product currently unavailable
Part no. A6222001200
Mercedes W447 Engine Belt Tensioner Wheel Pulley OM622 Diesel A6222001200
Product currently unavailable
Part no. A2662020219
Mercedes-Benz A B Class W169 W245 48V Petrol Alternator Belt Tensioner
Product currently unavailable
Part no. A6512007501
Mercedes Sprinter W910 OM651 Diesel Belt Tensioner Pulley A6512007501
Product currently unavailable
Part no. A1660300303
Vibration Damper Mercedes W168 M166 Engine Crankshaft Belt Pulley A1660300303
Product currently unavailable
Part no. A1192001170
Mercedes C140 CL420 M119 Belt Tensioner Pulley A1192001170
Product currently unavailable
Part no. A0002020019-1
Mercedes W203 Engine Belt Drive Tensioner Pulley A0002020019
Product currently unavailable
Part no. A1772360040
Mercedes W205 W213 63 AMG Belt Tensioner Pulley M177 A1772360040 A1772000070
Product currently unavailable
Part no. A2760500611
Mercedes A238 M276 Petrol Timing Chain Tensioner Right O/S Lower A2760500611
Product currently unavailable
Part no. A1112000070
Mercedes-Benz C E W202 W203 W210 M111 Engine Belt Tensioner Pulley A1112000070
Product currently unavailable
Part no. A2782000570
Mercedes W212 Engine Belt Drive Tensioner Pulley A2782000570
Product currently unavailable
Part no. A2710520703
Mercedes W203 W204 W211 Crankshaft Sprocket Gear Pulley M271 Petrol A2710520703
Product currently unavailable
Part no. A6420302403
Vibration Damper Mercedes C207 W212 W221 OM642 Diesel Pulley A6420301703
Product currently unavailable
Part no. A1772420200
Mercedes W205 C63 M177 Drive Alternator Belt Tensioner Bracket A1772420200
Product currently unavailable
Part no. A6512000470
Mercedes W906 OM651 Timing Belt Tensioner Pulley A6512000470
Product currently unavailable
Part no. A2822010300
Mercedes W177 C118 Water Pump Belt Tensioner M282 Petrol A2822010300
Product currently unavailable
Part no. A0002060200
Mercedes W177 C118 Belt Tensioner Pulley Wheel M282 A0002060200
Product currently unavailable
Part no. A1662000970
Mercedes-Benz A-Class W168 Belt Tensioner Holder Pulley A1662000970
Product currently unavailable
Part no. A2662000970-2
Mercedes W169 W245 M266 Petrol Engine Belt Tensioner A2662000970
Product currently unavailable
Part no. A6420300603
Mercedes Vito W639 Crankshaft Pulley Wheel 3.0 CDI A6420300603
Product currently unavailable
Part no. A2782000570-1
Mercedes W166 W207 W212 Engine Belt Drive Tensioner Pulley A2782000570
Product currently unavailable
Tensioners and rollers for smooth timing system operation
Tensioners and rollers for accurate timing belt and chain guidance
Tensioners and pulleys are key components of the timing and drive system, responsible for maintaining the correct tension of belts and chains and ensuring their smooth operation. They ensure the durability of components and the precision of the engine unit. In the Global Parts automotive store, you will find a wide selection of used car parts, including tensioners and pulleys, ideal for brands such as BMW, Audi, Mercedes, Volkswagen, Mini, and others.
What functions do tensioners and pulleys perform?
Tensioners and pulleys play a vital role in the operation of the timing system:
- Maintaining proper tension – They prevent the belt or chain from loosening, which could disrupt the system's synchronization.
- Reducing friction – Pulleys reduce mechanical resistance and extend the service life of timing system components.
- Drive guidance – Pulleys ensure the stability of belts or chains during operation, which translates into smooth engine performance.
Construction and purpose of tensioners and pulleys
Tensioners and pulleys are components mounted within the timing system or engine accessories, designed to guide and stabilize the operation of a belt or chain. A typical set consists of a housing, a bearing, a pulley working surface, and mounting points, and depending on the version, also a spring or hydraulic mechanism. Their position and method of operation should always be verified according to the OEM number, engine version, and mounting location.
Comparison of tensioner and pulley types
| Component type | Application | What to check before purchase |
|---|---|---|
| Guide pulley | Guides the belt or chain along the correct path | OEM number, diameter, width, bearing type, and mounting method |
| Tensioner pulley | Maintains the correct tension of the drive element | Engine compatibility, mounting position, geometry, and type of mating belt |
| Mechanical or hydraulic tensioner | Automatically compensates for tension changes during engine operation | Engine unit version, mounting points, OEM part number, and replacement numbers |
How to choose the right tensioners and pulleys?
When choosing tensioners and pulleys, you should pay attention to several key aspects:
- Compatibility with the vehicle model – Each component must be consistent with the vehicle's design and technical specifications. In the Global Parts automotive store, you will find tensioners and pulleys perfectly matched to BMW, Audi, Mercedes, Volkswagen, Mini, and others.
- Technical condition – Used components should be free from cracks, deformations, and other damage.
- Material quality – Choose tensioners and pulleys made of materials resistant to high temperatures, pressure, and mechanical stress.
Selection principles for the engine and accessories
The selection of a tensioner or pulley should consider not only the car brand but also the engine code, fuel type, and accessory version. In product cards, it is worth comparing data such as Brand, Condition, OEM Part Number, Replacement Numbers, and Fuel Type, because even visually similar components may have different mounting points or working diameters. For parts such as an m57 pulley, it is crucial to compare the OEM number, working diameter, and compatibility with mating accessories.
Mating components and signs of wear
A guide pulley is a component that maintains the correct belt path and limits its vibrations during engine operation. Bearing wear, misalignment, or excessive play can cause noise, uneven belt operation, and faster wear of adjacent parts, such as timing belts or guides. When choosing a component like an n47 BMW pulley, it is worth checking the torsional vibration damping, groove compatibility, and the method of seating on the shaft or accessory.
Why choose used tensioners and pulleys?
Used car parts, such as tensioners and pulleys, are a practical solution that allows for savings while maintaining high quality. By choosing used tensioners and pulleys, you gain:
- Lower costs – Used components are significantly cheaper than new ones but offer equally high quality.
- Ecology – Recycling car parts supports environmental protection and reduces waste.
- Wide selection – In our store, you will find tensioners and pulleys for the most popular car brands.
Why is it worth taking care of tensioners and pulleys?
Damage or wear of tensioners and pulleys can lead to serious problems with the timing system and engine operation. Typical problems include:
- Noise and squealing – Worn pulleys or faulty tensioners can cause loud timing system operation.
- Loosening of the belt or chain – Improper tension can lead to skipping or damage.
- Decrease in engine performance – Faulty tensioners can disrupt timing synchronization, which translates into uneven engine operation.
- Increased component wear – Excessive friction caused by pulley damage can shorten the life of belts and chains.
Importance of timing system compatibility
A tensioner is used to maintain constant pressure in the system, ensuring the belt or chain operates without excessive slack or deviation. An incorrectly selected component can disrupt cooperation with parts such as timing sprockets and timing chain and belt kits, which is why you should compare the completeness of the set, the position of the tensioner, and the engine unit version. If you are looking for a component like an om651 timing set, it is good to verify the compatibility of all mating elements, not just a single pulley.
How to maintain tensioners and pulleys?
To ensure tensioners and pulleys work reliably for a long time, it is worth following a few rules:
- Regular inspections – Check the condition of tensioners and pulleys during technical inspections, especially when replacing the timing belt.
- Replacement according to recommendations – Follow the replacement schedule recommended by the vehicle manufacturer.
- Monitoring symptoms – Respond to any noise, uneven system operation, or other disturbing symptoms. A helpful supplement for diagnosing components working with the drive is also the article Steering system and power steering – how it works and what breaks?, which describes how to analyze symptoms and approach the selection of used parts. If a replacement is needed, at Global Parts you will find suitable used parts that will help restore full efficiency to your timing system.
FAQ
| Question | Answer |
|---|---|
| What is the construction and purpose of tensioners and pulleys? | Tensioners and pulleys are components of the timing or accessory drive system, mounted near the belt or chain in the engine compartment. A typical assembly includes a housing, a bearing, a guide surface, and mounting points, and in some versions, a self-tensioning mechanism. Their task is to maintain the correct path and tension of the drive element. |
| What are tensioners and pulleys used for? | Tensioners and pulleys are used to stabilize the operation of a belt or chain and limit vibrations during engine operation. They influence the correct synchronization of components, operating culture, and the durability of mating parts. Without proper tension, accelerated wear, noise, or incorrect timing operation may occur. |
| What is the construction and function of a guide pulley? | A guide pulley is a component rotating on a bearing that determines the correct belt path and maintains its stability on a specific route. Its construction includes a working part, bearings, and a mounting hole or sleeve. In addition to guiding, it also reduces vibrations and limits uneven wear of mating surfaces. |
| How to select tensioners and pulleys for a specific car? | It is safest to compare the OEM part number, replacement numbers, engine version, fuel type, and mounting location. It is also worth checking the working diameter, type of mounting, and whether the element works with a belt, chain, or auxiliary accessories. For several variants of the same model, verification by VIN is also helpful. |
| What symptoms indicate wear of tensioners and pulleys? | The most common symptoms are bearing noise, squealing, uneven belt operation, and visible signs of excessive friction. You may also notice accessory vibrations, play on the pulley, or an incorrect belt path. Such signals should be compared with the condition of mating parts to assess the entire system. |
| What data should be considered when buying a used component? | When buying, it is worth checking the condition of the working surface, smoothness of rotation, absence of cracks, and completeness of mounting points. Compliance of markings with manufacturer documentation and comparison with the OEM number are also important. In many cases, confirming that the part fits a specific engine version and equipment is also helpful. |
Summary: tensioners and pulleys at the Global Parts automotive store
Tensioners and pulleys are essential components of the timing system that ensure its durability, precision, and smooth operation. By taking care of their technical condition, you can prevent costly failures and ensure engine reliability. The Global Parts offer includes used parts matched to cars from brands such as BMW, Mercedes, Audi, and others, taking into account the data needed to verify compatibility, such as the OEM number, replacement numbers, or engine version. We invite you to contact us – we are here to help! For more information and interesting facts, we also invite you to visit our automotive blog.